38897863536 has 80 divisors (see below), whose sum is σ = 115718093568. Its totient is φ = 11028825600.

The previous prime is 38897863493. The next prime is 38897863561. The reversal of 38897863536 is 63536879883.

It is a happy number.

38897863536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397845 + ... + 485876.

Almost surely, 2^38897863536 is an apocalyptic number.

It is an amenable number.

38897863536 is an abundant number, since it is smaller than the sum of its proper divisors (76820230032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38897863536 is a wasteful number, since it uses less digits than its factorization.

38897863536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883870 (or 883864 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 38897863536 in words is "thirty-eight billion, eight hundred ninety-seven million, eight hundred sixty-three thousand, five hundred thirty-six".